File: simple.cpp

package info (click to toggle)
boost1.90 1.90.0-1
  • links: PTS, VCS
  • area: main
  • in suites:
  • size: 593,120 kB
  • sloc: cpp: 4,190,908; xml: 196,648; python: 34,618; ansic: 23,145; asm: 5,468; sh: 3,774; makefile: 1,161; perl: 1,020; sql: 728; ruby: 676; yacc: 478; java: 77; lisp: 24; csh: 6
file content (32 lines) | stat: -rw-r--r-- 1,106 bytes parent folder | download | duplicates (17)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
// Copyright 2011 Stefan Seefeld.
// Distributed under the Boost Software License, Version 1.0. (See
// accompanying file LICENSE_1_0.txt or copy at
// http://www.boost.org/LICENSE_1_0.txt)

#include <boost/python/numpy.hpp>
#include <iostream>

namespace p = boost::python;
namespace np = boost::python::numpy;

int main(int argc, char **argv)
{
  // Initialize the Python runtime.
  Py_Initialize();
  // Initialize NumPy
  np::initialize();
  // Create a 3x3 shape...
  p::tuple shape = p::make_tuple(3, 3);
  // ...as well as a type for C++ float
  np::dtype dtype = np::dtype::get_builtin<float>();
  // Construct an array with the above shape and type
  np::ndarray a = np::zeros(shape, dtype);
  // Construct an empty array with the above shape and dtype as well
  np::ndarray b = np::empty(shape,dtype);
  // Print the array
  std::cout << "Original array:\n" << p::extract<char const *>(p::str(a)) << std::endl;
  // Reshape the array into a 1D array
  a = a.reshape(p::make_tuple(9));
  // Print it again.
  std::cout << "Reshaped array:\n" << p::extract<char const *>(p::str(a)) << std::endl;
}